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Why do we need NoSQL?

Pragya Keshap answered on February 23, 2023 Popularity 10/10 Helpfulness 1/10


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  • Why do we need NoSQL?


    Why do we need NoSQL?

    The Relational Databases have the following challenges:

    Not good for large volume (Petabytes) of data with variety of data types (eg. images, videos, text)

    Cannot scale for large data volume

    Cannot scale-up, limited by memory and CPU capabilities

    Cannot scale-out, limited by cache dependent Read and Write operations

    Sharding (break database into pieces and store in different nodes) causes operational problems (e.g. managing a shared failure)

    Complex RDBMS model

    Consistency limits the scalability in RDBMS

    Compared to relational databases, NoSQL databases are more scalable and provide superior performance. NoSQL databases address the challenges that the relational model does not by providing the following solution:

    A scale-out, shared-nothing architecture, capable of running on a large number of nodes

    A non-locking concurrency control mechanism so that real-time reads will not conflict writes

    Scalable replication and distribution – thousands of machines with distributed data

    An architecture providing higher performance per node than RDBMS

    Schema-less data model 

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    Contributed on Feb 23 2023
    Pragya Keshap
    0 Answers  Avg Quality 2/10


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